Pipe.



J. C. DANDO.

PIPE. APPLICATlflN FILED AUG-8, I917- Patented Dec. 3, 1918.

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JOSEPH cmrnonn nAnno, or PHILADELPHIA, PENNSYLVANIA.

PIPE.

Specification of Letters ratent.

Pate ted Dec.3,1918

Application filed August 8, 1917. Serial No. 185,001.

To all whom it may concern:

Be it known, that I, JOSEPH Gmnronn DANDO, a citizen of the United States, res ding in Philadelphia, Pennsylvania, have 1nvented certain Improvements in Pipes, of which the following is a specification.

My invention relates to ipes for smoking tobacco, and the object of my invention is to provide a pipe of metal that will be light in weight and have a relatively large capacity, and to provide therewith means for preventing undue heating of the outside wall of the same; such means preferably comprising a diaphragm or guard disposed within an air space formed between the bowl of the pipe and the'outer shell of the same.

A further object of my invention is to provide my improved pipe with a stem that is connected to the bowl at a point near the top the same, and with an interposed diaphragm,

if desired.

These and other features of my invention are more fully described hereinafter, reference being had to the accompanying drawings, in which:

Figure 1, is a sectional elevation of a pipe embodying my invention.

Fig. 2, is a detached perspective view of the parts of the structure shown in Fig. 1, and

Fig. 3, is a sectional view illustrating a modified detail of construction.

In Figs. 1 and 2 of the drawings, 1 represents a shell or casing forming the outer wall of a pipe made in accordance with my invention, to which a stem 2 is connected. This stem may be attached to a tubular extension 3 carried by said shell adjacent the top of the same; said stem being curved and extending downwardly from its point of attachment with the shell in a generally diagonal direction, and may be provided with any suitable form of mouth-piece 4, which is preferably integral therewith. The shell 1 is of metal, and carries a tobacco-receiving bowl 5, also ofmetal; the latter being preferably provided with a threaded cap portion 6 whereby it may be screwed into the threaded portion of the outer shell, as indicated at 7.

If desired, the cap portion may be arranged to screw down on the outside of the shell 1, as shown in Fig. 3. The lower end or bottom of the bowl 5 is provided with smoke outlets 8, and the usual suction on the stem 2 will cause this smoke to pass to the lower portion of the outer shell, and thence to the outlet formed in the tubular extension 3 at the upper part of said outer shell and to which the stem is connected, for passage to the mouth of the user.

For the purpose of maintaining the outer wall or shell cool or substantially so, I provide an intermediate wall or diaphragm 9, which is preferably carried by the cap portion 6 of the inner bowl and for which purpose it may be flanged at 10 for engagement by the cap portion 6, as shown in Fig. 1. Or it may be an entirely independent shell slipped into the outer shell and held in place by the cap portion of the bowl 5, as shown in Fig. 3. In some instances it might be secured to the bottom of the outer bowl; being provided in such instance with sufficient apertures in its lower portion for the proper passage of smoke from the inner bowl 5 to the stem. This intermediate Wall or diaphragm 9 in all instances is open at the bottom and extends below the bottom of the inner tobacco-receiving bowl, so that smoke from the burning tobacco within the bowl'must pass around the lower edge of or through the lower portion of said diaphragm before it reaches the outlet in the tubular extension 8 communicating with the stem 2.

My improved pipe being made of metal, it may be boiled, steamed, or otherwise treated before or after separation into its several sections, to insure proper cleansing of the same. Moreover, it will. be extremely light when constructed of aluminum.

I claim:

1. As a new article of manufacture, a pipe bowl comprising an outer shell, an inner tobacco-receiving bowl, a diaphragm of cylindrical shape and open at its lower end interposed between said inner and outer shells and connected with the latter at the upper end thereof; the lower portion of the bowl and the diaphragm being disconnected with each other and spaced apart for free circulation of the smoke, and a stem connected to the upper part of the outer shell.

'2. The combination, in a tobacco pipe, of an outer shell, a centrally disposed tobacco- 10 receiving bowl, a cylindrical diaphragm inwise entirely disconnected, and a stem connected to the shell of the pipe at the top or upper portion of the same; said stem being curved and extending downwardly at its connection with the shell.

J. CLIFFORD DANDO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patenta, Washington, D. C. 

